Sagan informational stable other

[COURIER-CORRELATED] Logout/disconnect after recon activity

Detection Logic

alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[COURIER-CORRELATED] Logout/disconnect after recon activity"; meta_content: "%sagan%",LOGOUT,DISCONNECTED; default_proto: tcp; classtype: not-suspicious; parse_src_ip: 1; program: imapd
| imapd-ssl
| courierlogger; xbits: isset,brute_force,track ip_src;  threshold: type suppress, track by_src, count 5, seconds 3600; sid:5003245; rev:4;)

Field Validations

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